About us

Proxy.Doctor is primarily a 4G+ Mobile Proxy provider

We are based in Vienna, Austria and have developed a unique way of connecting to one of the most sophisticated 4G+ Mobile networks in the heart of Europe. With some of the most stable high-speed fiber-optic backbone network connections in the world, Austria is the perfect choice for 4G + Mobile Proxies.

4G+ Mobile Proxies

We are Social Media professionals - offering highly technical Mobile Proxy knowledge

Since one of the biggest concerns in picking a proxy provider is and always has been trust, we have put together a guide for you to test any proxy and verify its legitimacy. On the other hand, one of the best ways to test a 4G proxy is to trial it with your own system. For this reason we offer 2-5 day trials on all our 4G+ Mobile Proxies. We trust the quality and effectiveness of our proxies , and believe that you will see immediate results.

TCP/IP stack

Just inspecting the Initial TTL and window size is enough in order to successfully identify an operating system.

TCP/IP Check

Your Fingerprint

Different operating systems, and different versions of the same OS, set different defaults values, and help build your online profile.

Profile Check

User agent ID

It will show your browser, version, plus some compatibility information. This is set by your software and not by the OS fingerprint. Set it correctly.

User Agent Check

Domain Name System (DNS)

DNS leaks are security flaws that allows DNS requests to be revealed , despite trying to conceal them. They must match the IP.

DNS Check

Time to live (TTL)

Or hop-limit, is a mechanism that limits the lifespan of data in a network and if not matched, will be suspicious to any platform.

TTL Check

Protection against fingerprinting

Disallowing TCP/IP fingerprinting provides protection from vulnerability scanners looking to target machines running a certain operating system, but will raise red flags with social media platforms.

More Information

∗ source: wikipedia.org

BrowserLeaks.com and IPleak.com have basic features such as showing Your IP Address and HTTP Headers, IP-based geolocation (GeoIP) determines your Country, State, City, ISP/ASN, Local Time. There’s also TCP/IP OS Fingerprinting, WebRTC Leak Tests, DNS Leak Test, IPv6 Leak Test.

Some Examples are included below.

Here some examples that you can try. Identify the problems with these 4G proxies. They are all leaking something – they shouldn’t.



We offer 48-Hour Trials for Personal Use and 5-Day Trials for Agencies

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